<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>test1</title>
</head>
<body>
    <li>粑粑</li>
    <li>麻麻</li>
    <li>brother</li>
    <li>爷爷</li>
    <li>姐姐</li>
    <!-- 分支 -->
    <li>奶奶</li>
    <li>孙子</li>
</body>
</html>